The question remains, however, of how to fit all the possible \(\left| {B = {q_b}} \right\rangle \otimes \left| {C = {q_c}} \right\rangle \)  configuration states into that big curly brace in a natural way. One of our interesting discoveries is that the so-called locking bit thread configuration [1]} can automatically implement this task, albeit in a slightly different way. Moreover, our discovery will endow bit threads with a definite physical meaning. Later, we will also explore an interesting picture about spacetime emergence. Consider a locking bit thread configuration that can lock three regions \(A\) , \(B\) , and \(C\)  (which are three RT surfaces) simultaneously, as shown in figure REF (a). It is characterized by a multiflow consisting of three component flows \({v_{AB}}\) , \({v_{AC}}\)  and \({v_{BC}}\) , each of which describes an independent thread bundle. Define
\(F{(\alpha )_{ij}} = \left| {\int _\alpha {{{\vec{v}}_{ij}}} } \right| = \left| {\int _\alpha {\sqrt{h} {{\hat{n}}_\alpha } \cdot {{\vec{v}}_{ij}}} } \right|\) 
